Sanctification: Effected by The Holy Spirit
Source: TTT
Romans 15:16
to be a minister of Christ Jesus to the Gentiles in the priestly service of the gospel of God, so that the Gentiles might become an offering acceptable to God, sanctified by the Holy Spirit.
1 Corinthians 6:11
And that is what some of you were. But you were washed, you were sanctified, you were justified, in the name of the Lord Jesus Christ and by the Spirit of our God.